单词	主焦点距离
释义	主焦点距离principal facal distance
随便看	refreshfully refresh graphics refresh graphics display services refreshing refreshingly refreshingness refreshing of data refreshing the screen refreshment refreshment bar refreshment beverage refreshment beverage-- refreshment drink refreshment beverage， refreshment drink refreshment car refreshment drink refreshment room refreshments refreshment stall refreshment stand refreshment sunday refresh one's memory refresh one's self with food, refresh one's self with joy, refresh one's spirits a little, refresh one's (或 someone's)memory